Doctors are pushing for the health system to invest in ways of reducing surgical complications in bowel cancer patients.
Laila Sheikh, of Middlemore Hospital, and colleagues have studied bowel cancer surgery complications at Northland District Health Board.
Of 390 bowel cancer surgery patients in the study, 107 - more than a quarter - suffered a complication, they write in today's NZ Medical Journal.
The median cost of surgery was $28,485 with complications and $14,697 without.
Complications of bowel cancer surgery can include blood clots, bowel obstruction, bleeding, heart trouble, leaking of surgical joins, and infection.